A professional who performs immunohematology tests, recommends blood problem solutions to doctors, and serves as consultant to blood bank and community. Responsibilities include:

• Visually inspects blood in specimen tubes for hemolysis.
• Centrifuges blood specimen to separate red cells from serum and tests separated serum to detect presence of antibodies.
• Interprets reactions observed to devise experiments and suggest techniques that will resolve patient's blood problems.
• Combines known and unknown cells with serum in test tubes and selects reagents, such as albumin, protolytic enzymes, and anti-human globutin, for individual tests to enhance and make visible reactions of agglutination and hemolysis.
• Processes various combinations in centrifuge and examines resulting samples under microscope to identify evidence of agglutination or hemolysis.
• Repeats and varies tests until normal suspension of reagents, serum, and red cells is attained.
• Interprets results obtained and identifies specific antibodies.
• Writes blood specifications to meet patient's need, on basis of test results, and applies knowledge of blood classification system to locate donor's blood.
• Performs immunohematology tests on donor's blood to confirm matching blood types.
• Requisitions and sends blood to supply patient's need, and prepares written report to inform physician of test results and of required volume of blood to administer.
• Evaluates completeness of immunohematology tests.
• May advise medical technologists in techniques of microscopic identification of precipitation, agglutination, or hemolysis in blood that leads to resolution of problems.